They didnt.
with there mouths
A business letter is correspondence used to communicate any type of business in writing, between a company, an organization, a government official or agency, or an individual.A memorandum is normally used to communicate any type of business matter in writing within a company, an organization, or government agency; a form of internal communication.
Jefferson is
Presidential address
the egyptians used a fether and ink to communicate
they were used for people back in time to communicate like in Egypt would use them to communicate or write on walls.
to communicate with your friends
The internet came from ARPANET, a division of DARPA (U.S. government military research). It was used to communicate and share data between DARPA and universities doing research for them.
Whistles are used by dolphins to communicate, though the nature and extent of their ability to communicate in this way is not known.Dolphins use - Ultrasound to communicate.
Users can communicate to their computer using the keyboard. Another device that can be used to communicate to a computer is the mouse.
to communicate with deaf people or for people with voice impairment to communicate
Depending on the context, it either means that somebody is talking about an object which purportedly helps you communicate with God, or that in the past, a person regularly communicated with God.